JPS6386883A - Production of reaction membrane and gas diffusion membrane - Google Patents
Production of reaction membrane and gas diffusion membraneInfo
- Publication number
- JPS6386883A JPS6386883A JP61231583A JP23158386A JPS6386883A JP S6386883 A JPS6386883 A JP S6386883A JP 61231583 A JP61231583 A JP 61231583A JP 23158386 A JP23158386 A JP 23158386A JP S6386883 A JPS6386883 A JP S6386883A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- fine powder
- water
- gas diffusion
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 68
- 238000009792 diffusion process Methods 0.000 title claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000000843 powder Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000007731 hot pressing Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims description 16
- 239000011812 mixed powder Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000006229 carbon black Substances 0.000 abstract description 4
- -1 polytetrafluoroethylene Polymers 0.000 abstract description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract description 3
- 239000005871 repellent Substances 0.000 abstract description 2
- 238000000151 deposition Methods 0.000 abstract 1
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000009702 powder compression Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/8807—Gas diffusion layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、燃料電池、二次電池、電気化学的リアクター
、めっき用陽極等に用いるガス拡散電極用反応膜や、電
池、気体透過膜、濃縮、加湿、除湿等に用いるガス拡散
膜を製造する方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to reaction membranes for gas diffusion electrodes used in fuel cells, secondary batteries, electrochemical reactors, plating anodes, etc., batteries, gas permeable membranes, This invention relates to a method of manufacturing a gas diffusion membrane used for concentration, humidification, dehumidification, etc.
（従来の技術）
従来、上記用途の反応膜やガス拡散膜を製造するには、
それらの原料である混合微粉末を、フラットなプレスプ
レート上に、大概所要となるように配して、平にならし
、然る後ホットプレスにて前記混合微粉末を結着して、
反応膜やガス拡散膜を作っている。(Prior art) Conventionally, in order to manufacture reaction membranes and gas diffusion membranes for the above uses,
The mixed fine powder, which is the raw material for these, is arranged on a flat press plate in roughly the required manner and smoothed, and then the mixed fine powder is bonded with a hot press,
We make reaction membranes and gas diffusion membranes.
（発明が解決しようとする問題点）
ところが、上記の製造方法では、混合微粉末をプレスプ
レート上に均一な厚さにならすことができないので、ホ
ットプレスにより結着した際、密度むらができ、反応膜
の場合ガスと電解液が接触する通路が全面均等に微細に
分散形成されず、またガス拡散膜の場合ガスが拡散透過
する通路が全面均等に微細に分散形成されず、従って反
応膜は、気液接触反応が有効に行われず、単位面積当り
流せる電流が少ないものであり、またガス拡散膜は、ガ
スの拡散透過が十分に行われず、透過効率が悪いもので
ある。(Problems to be Solved by the Invention) However, in the above manufacturing method, it is not possible to form the mixed fine powder on the press plate to a uniform thickness, so when it is bonded by hot pressing, density unevenness occurs. In the case of a reaction membrane, the passages through which the gas and electrolyte come into contact are not formed evenly and finely distributed over the entire surface, and in the case of a gas diffusion membrane, the passages through which the gas diffuses and permeates are not formed evenly and finely distributed over the entire surface. The gas-liquid contact reaction does not take place effectively, and the amount of current that can be passed per unit area is small, and the gas diffusion membrane does not sufficiently diffuse and permeate gas, resulting in poor permeation efficiency.
また上記の製造方法では、混合微粉末をプレスプレート
上に、大概所要の面積となるように配して平にならさな
ければならないので、甚だ作業性、生産性が悪いもので
ある。Furthermore, in the above manufacturing method, the mixed fine powder must be arranged and flattened on the press plate to approximately the required area, resulting in extremely poor workability and productivity.
そこで本発明は、密度むらが無（、ガスを電解液が接触
する通路が全面均等に微細に分散形成された反応膜やガ
スが拡散透過する通路が全面均等に微細に分散形成され
たガス拡散膜を作ることができ、しかも作業性生産性の
良い製造方法を提供しようとするものである。Therefore, the present invention has developed a reaction membrane in which there is no density unevenness (i.e., a reaction membrane in which the passages through which gas and electrolyte come into contact are uniformly and finely distributed over the entire surface, and a gas diffusion membrane in which the passages through which the gas diffuses and permeates are formed in finely distributed distribution evenly over the entire surface. The purpose of this invention is to provide a manufacturing method that can produce membranes and has good workability and productivity.
（問題点を解決するための手段）
上記問題点を解決するための本発明による反応膜・ガス
拡散膜の製造方法は、反応膜用混合微粉末やガス拡散膜
用混合微粉末等の原料微粉末を、水槽内の水に投入浮上
させ、次に水中にてシートを繰り出して斜上方に引き上
げて水上に浮上する原料微粉末をシート上に付着させ、
然る後ホットプレスにより原料微粉末を結着して、反応
膜やガス拡散膜を作ることを特徴とするものである。(Means for Solving the Problems) In order to solve the above-mentioned problems, the method for producing a reaction membrane/gas diffusion membrane according to the present invention uses a raw material fine powder such as a mixed fine powder for a reaction membrane or a mixed fine powder for a gas diffusion membrane. Powder is poured into water in a water tank and floated, then a sheet is let out in the water and pulled up diagonally upwards, and the fine raw material powder that floats on the water is deposited on the sheet.
The method is characterized in that the raw material fine powders are then bound together by hot pressing to form a reaction film or a gas diffusion film.
（作用）
上記の如く本発明の反応膜・ガス拡散膜の製造方法では
、原料微粉末を水槽内の水に浮上させるので、容易に原
料微粉末が水上全面に均等に分散する。従って、その後
水中にてシートを繰り出して斜上方に引き上げて水上に
浮上する原料微粉末をシート上に付着させると、均一な
厚さとなるので、乾燥後ホラ１−プレスにより結着して
反応膜やガス拡散膜を作ると、その反応膜やガス拡散膜
は密度むらが無く、ガスと電解液が接触する通路やガス
が拡散透過する通路が全面均等に微細に分散形成された
ものとなる。(Function) As described above, in the method for producing a reaction membrane/gas diffusion membrane of the present invention, the raw material fine powder is floated on the water in the water tank, so that the raw material fine powder is easily dispersed evenly over the entire surface of the water. Therefore, if the sheet is then let out in water and pulled up diagonally upwards, and the raw material fine powder that floats on the water is deposited on the sheet, it will have a uniform thickness, and after drying, it will be consolidated by a hollow press and the reaction film will be formed. When a reaction membrane or a gas diffusion membrane is made, the reaction membrane or gas diffusion membrane has no density unevenness, and the passages where the gas and electrolyte come into contact and the passages through which the gas diffuses and permeates are formed evenly and finely distributed over the entire surface.
（実施例）
本発明の反応膜・ガス拡散膜の製造方法の一実施例を反
応膜を作る場合について説明する。平均粒径４２０人の
親水性カーボンブランクと撥水性カーボンブラックと平
均粒径０．３μｍのポリ四弗化エチレンの微粉末を４７
４：３の割合で混合撹拌した後、この混合微粉末を図面
に示すように幅１５０璽■、長さ３００ｍｍ、深さ１５
０ｍｍの水槽１内の水２に投入浮上させた。次に水槽ｌ
内の一例に設けられたシート巻取ロール３に巻取られた
幅１５０１ｍの１６００メツシユのテトロンスクリーン
４を繰り出しして水槽１の他側斜上方に引き上げると同
時に粉末圧縮板を同一速度で移動させ、水２上に浮上す
る混合微粉末５をテトロンスクリーン４上に付着させ、
上下一対のガイドロール６．６′を通過させて混合微粉
末５を圧して微粉末どうしの結着と共に水抜きした。次
いでそのままテトロンスクリーン４を加熱器７を通して
乾燥し、水分を完全に除去した。然る後このテトロンス
クリーン４を剥離し、所要の長さに切断したシート状混
合微粉末をホットプレスにて加圧結着して、厚さ０．１
５龍の帯状の反応膜を作った。(Example) An example of the method for manufacturing a reaction membrane/gas diffusion membrane of the present invention will be described with reference to a case where a reaction membrane is manufactured. A hydrophilic carbon blank with an average particle size of 420, water-repellent carbon black, and fine powder of polytetrafluoroethylene with an average particle size of 0.3 μm were mixed into 47
After mixing and stirring at a ratio of 4:3, this mixed fine powder was made into a size of 150 mm wide, 300 mm long, and 15 mm deep, as shown in the drawing.
It was floated in water 2 in a 0 mm water tank 1. Next is the aquarium l
A 1,600-mesh Tetron screen 4 with a width of 1,501 m wound around a sheet winding roll 3 provided in one example of the above is let out and pulled up diagonally upward on the other side of the water tank 1, and at the same time the powder compression plate is moved at the same speed. , the mixed fine powder 5 floating on the water 2 is deposited on the Tetron screen 4,
The mixed fine powder 5 was passed through a pair of upper and lower guide rolls 6, 6' and pressed to bind the fine powders together and remove water. Next, the Tetron screen 4 was directly passed through a heater 7 to dry it to completely remove moisture. After that, this Tetron screen 4 was peeled off, and the sheet-like mixed fine powder cut into the required length was pressure-bound using a hot press to form a sheet with a thickness of 0.1 mm.
We created a band-shaped reaction membrane with 5 dragons.
こうして作った反応膜を１００枚、光学顕微鏡により組
織検査した処、殆んど密度むらが無く、ガスと電解液が
接触する通路面積が全面均等に分散形成されていた。When the structure of 100 reaction membranes thus prepared was examined using an optical microscope, it was found that there was almost no density unevenness, and the area of the passages where the gas and electrolyte came into contact were evenly distributed over the entire surface.
この反応膜は、単独にガス拡散電極として、或いはｔＪ
３水性のガス拡散膜に接合°して複数層のガス拡散電極
として、燃料電池、二次電池、電気化学的リアクター、
めっき用陽極等に使用される。これらに使用した際、反
応膜は、ガスと電解液が接触する通路が全面均等に分散
形成されているので、有効に気液接触反応が行われ、単
位面積当り流せる電流が大きく、極めて効率が高いもの
である。This reaction membrane can be used alone as a gas diffusion electrode or as a tJ
3.It can be bonded to an aqueous gas diffusion membrane and used as a multilayer gas diffusion electrode in fuel cells, secondary batteries, electrochemical reactors,
Used for plating anodes, etc. When used in these applications, the reaction membrane has channels where gas and electrolyte come into contact that are evenly distributed over the entire surface, so gas-liquid contact reactions occur effectively, allowing a large current to flow per unit area, making it extremely efficient. It's expensive.
尚、上記実施例では反応膜の製造に用いた原料微粉末に
は白金等の触媒を担持させていないが、担持させても良
いものである。また上記の如く製造した反応膜には、触
媒金属化合物溶液を塗布して含浸させた後、空気中で加
熱分解し、Ｈｚ中で還元して触媒を親水性カーボンブラ
ンクに付着するようにしても良い。さらにテトロンスク
リーン４の代わりに濾紙、濾布等の他のシートを用いて
も良いものである。またステンレスシートをエンドレス
に使用することもできる。Incidentally, in the above embodiments, the raw material fine powder used for manufacturing the reaction membrane does not support a catalyst such as platinum, but it may be supported. Alternatively, the reaction membrane produced as described above may be coated with a catalytic metal compound solution to be impregnated, and then thermally decomposed in air and reduced in Hz to adhere the catalyst to a hydrophilic carbon blank. good. Furthermore, other sheets such as filter paper or filter cloth may be used instead of the Tetron screen 4. Also, stainless steel sheets can be used endlessly.
次に本発明の反応膜、ガス拡散膜の製造方法の他の実施
例をガス拡散膜を作る場合について説明する。平均粒径
４２０人のｔ０水性カーボンブラックと平均粒径０．３
μｍのポリ四弗化エチレンの微粉末を７：３の割合で混
合攪拌した後、この混合微粉末を図面に示す如く幅１５
０ｍｍ、長さ３００龍、深さ１５０鳳■の水槽１内の水
２に投入浮上させた。次に水槽１内の一例に設けられた
シート巻取ロール３に巻取られた幅１５０ｍｍの１６０
０メソシユのテトロンスクリーン４を繰り出して水槽１
内の他側斜上方に引き上げると同時に粉末圧縮板８を同
一速度で移動させ、水２上に浮上する混合微粉末５′を
テトロンスクリーン４上に付着させ、上下一対のガイド
ロール６．６′を通過させて混合微粉末５′を圧して微
粉末どうしの結着と共に水抜きした。Next, another embodiment of the method for manufacturing a reaction membrane and gas diffusion membrane of the present invention will be described with reference to the case where a gas diffusion membrane is manufactured. Average particle size 420 people t0 aqueous carbon black and average particle size 0.3
After mixing and stirring micron polytetrafluoroethylene fine powder at a ratio of 7:3, the mixed fine powder was mixed with a width of 15 mm as shown in the drawing.
It was floated in water 2 in a tank 1 with a diameter of 0 mm, a length of 300 mm, and a depth of 150 mm. Next, 160 sheets having a width of 150 mm are wound up on a sheet winding roll 3 provided in an example of the water tank 1.
Bring out the Tetron screen 4 with 0 mesh and open the aquarium 1.
At the same time, the powder compression plate 8 is moved at the same speed to make the mixed fine powder 5' floating on the water 2 adhere to the Tetron screen 4, and the pair of upper and lower guide rolls 6.6' The mixed fine powder 5' was compressed by passing through it to bind the fine powders together and remove water.
次いでそのままテトロンスクリーン４を加熱器７を通し
て乾燥し、水分を完全に除去した。然る後このテトロン
スクリーン４上の混合微粉末５をホットプレス８にて加
圧結着して厚さ０．５鶴の帯状のガス拡散膜１０を作っ
た。Next, the Tetron screen 4 was directly passed through a heater 7 to dry it to completely remove moisture. Thereafter, the mixed fine powder 5 on the Tetron screen 4 was pressed and bonded using a hot press 8 to form a band-shaped gas diffusion membrane 10 having a thickness of 0.5 mm.
こうして作ったガス拡散膜を１００枚、光学顕微鏡によ
り組織検査した処、殆んど密度むらが無く、ガスの拡散
透過する通路面積が全面均等に分散形成されていた。When the structure of 100 gas diffusion films thus prepared was examined using an optical microscope, it was found that there was almost no density unevenness, and the passage area through which gas diffused and permeated was evenly distributed over the entire surface.
このガス拡散膜は、その後所要の寸法、形状を截断し、
テトロンスクリーン４を剥離して、燃料電池、二次電池
のガス拡散電橋に於けるガス拡散層として、また気体透
過膜や濃縮、加湿、除湿用の茶気透過膜として使用され
る。これに使用した際、ガス拡散膜は、ガス拡散透過す
る通路が全面均等に分散形成されているので、気体や蒸
気の拡散透過が十分に行われ、極めて効率が高いもので
ある。This gas diffusion membrane is then cut into the required dimensions and shape.
The Tetron screen 4 is peeled off and used as a gas diffusion layer in a gas diffusion bridge of a fuel cell or secondary battery, or as a gas permeable membrane or a brown air permeable membrane for concentration, humidification, and dehumidification. When used for this purpose, the gas diffusion membrane has gas diffusion and permeation passages evenly distributed over the entire surface, so that gas and vapor can be sufficiently diffused and permeated, resulting in extremely high efficiency.
（発明の効果）
以上の説明で判るように本発明の反応膜・ガス拡散膜の
製造方法によれば、均一な厚さで密度むらが無く、ガス
と電解液が接触する通路やガスが拡散透過する流路が全
面均等に微細に分ｉｉ１．形成されて、気液接触反応効
率やガスの拡散ｊ３過効−名の極めて高い反応膜やガス
拡散膜を得ることができる。(Effects of the Invention) As can be seen from the above explanation, according to the method for producing a reaction membrane/gas diffusion membrane of the present invention, the thickness is uniform and there is no density unevenness, and the passages where gas and electrolyte come into contact and the gas diffusion membrane are uniform. The permeating flow path is divided evenly and finely over the entire surface ii1. As a result, it is possible to obtain a reaction film or a gas diffusion film with extremely high gas-liquid contact reaction efficiency and gas diffusion efficiency.
また本発明の反応膜・ガス拡散膜の一゛Ｊ造方法では、
水槽中に投入浮上させた原料微粉末が容易に水上の全面
に均等に分散し、その後水中にてシートを繰り出して斜
上方に引き上げることにより水上に浮上する原料微粉末
がシー上に均一な厚さとなって付着するので、手間がか
からず、極めて製作作業性が良く、しかも連続的にシー
（・」二に原料微分末が均一な厚さに付着するので掻め
て生産性が良い。In addition, in the method for manufacturing a reaction membrane/gas diffusion membrane of the present invention,
The raw material fine powder floated into the water tank is easily dispersed evenly over the entire surface of the water, and then the sheet is let out in the water and pulled up diagonally upwards, so that the raw material fine powder floats on the water to a uniform thickness on the sea. Because it adheres in a single layer, it does not take much time and is extremely easy to work with.In addition, since the raw material derivative powder adheres to a uniform thickness on the sheet continuously, productivity is high.
図は本発明の反応膜・ガス拡散膜の製造方法を示す図で
ある。
出願人 田中貴金属工業株式会社
１・・・水槽
？・・・〃末ユ稍肱
手 続 補 正 書く方式）
昭和６２年Σ月乙口
３、補正をする仔
事件との関係 特許出願人
昭和６２年１月２７日
５、補正の対象
明細書の発明の名称及び特許請求の範囲の（聞６、補正
の内容
（１）明細書第１頁の特許請求の範囲を別紙のＪり補正
する。
（２）同第１頁第３行目の「等Ｊを特徴する特許請求の
範囲
反応膜用混合粉末やガス拡散膜用混合微粉末等の原料ｉ
故粉末を、水槽内の水に投入浮上させ、次に水中にてシ
ートを繰り出して斜上方に引き上げて水上に浮上する原
料微粉末をシート上に付着させ、然る後ホットプレスに
より原料微粉末を結着して、反応膜やガス拡散膜を作る
ことを特徴とする反応膜・ガス拡散膜の製造方法。The figure is a diagram showing a method for manufacturing a reaction membrane/gas diffusion membrane of the present invention. Applicant Tanaka Kikinzoku Kogyo Co., Ltd. 1...Aquarium?・・・〃End of procedure, continuation, amendment, writing method) Otsuguchi, Σ, 1986 3, Relationship with the case where the amendment is made Patent applicant January 27, 1988 5, of the specification to be amended (6) Contents of amendment (1) The scope of claims on page 1 of the specification is amended as shown in the attached sheet. (2) " Claims characterized by J. Raw materials i for mixed powders for reaction membranes, mixed fine powders for gas diffusion membranes, etc.
The waste powder is poured into water in a water tank and floated. Next, a sheet is fed out in the water and pulled up diagonally to make the raw material fine powder floating on the water adhere to the sheet. After that, the raw material fine powder is heated using a hot press. A method for producing a reaction membrane/gas diffusion membrane, which is characterized by forming a reaction membrane or a gas diffusion membrane by binding together the following.
Claims (1)
粉末を、水槽内の水に投入浮上させ、次に水中にてシー
トを繰り出して斜上方に引き上げて水上に浮上する原料
微粉末をシート上に付着させ、然る後ホットプレスによ
り原料微粉末を結着して、反応膜やガス拡散膜等を作る
ことを特徴とする反応膜・ガス拡散膜等の製造方法。Fine raw material powder, such as mixed powder for reaction membranes or mixed fine powder for gas diffusion membranes, is poured into water in a water tank and floated, then a sheet is let out in the water and pulled up diagonally upwards to float on the water. A method for producing a reaction membrane, a gas diffusion membrane, etc., characterized in that a reaction membrane, a gas diffusion membrane, etc. are produced by adhering the mixture onto a sheet and then binding the raw material fine powder by hot pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61231583A JPH0633480B2 (en) | 1986-09-30 | 1986-09-30 | Method for manufacturing reaction film / gas diffusion film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61231583A JPH0633480B2 (en) | 1986-09-30 | 1986-09-30 | Method for manufacturing reaction film / gas diffusion film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6386883A true JPS6386883A (en) | 1988-04-18 |
| JPH0633480B2 JPH0633480B2 (en) | 1994-05-02 |
Family
ID=16925792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61231583A Expired - Lifetime JPH0633480B2 (en) | 1986-09-30 | 1986-09-30 | Method for manufacturing reaction film / gas diffusion film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633480B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1006599A1 (en) * | 1998-12-02 | 2000-06-07 | Katayama Special Industries, Ltd. | Method of producing electrode for battery and electrode produced by method |
| WO2000055933A1 (en) * | 1999-03-16 | 2000-09-21 | Johnson Matthey Public Limited Company | Gas diffusion substrates |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141071A (en) * | 1979-04-23 | 1980-11-04 | Matsushita Electric Ind Co Ltd | Production of gas diffusion electrode |
-
1986
- 1986-09-30 JP JP61231583A patent/JPH0633480B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141071A (en) * | 1979-04-23 | 1980-11-04 | Matsushita Electric Ind Co Ltd | Production of gas diffusion electrode |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1006599A1 (en) * | 1998-12-02 | 2000-06-07 | Katayama Special Industries, Ltd. | Method of producing electrode for battery and electrode produced by method |
| WO2000055933A1 (en) * | 1999-03-16 | 2000-09-21 | Johnson Matthey Public Limited Company | Gas diffusion substrates |
| US6531240B1 (en) | 1999-03-16 | 2003-03-11 | Johnson Matthey Public Limited Company | Gas diffusion substrates |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0633480B2 (en) | 1994-05-02 |
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